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OA3G01

The ABB OA3G01 is a pluggable auxiliary contact block accessory used in electrical control systems. It provides an additional normally closed (NC) contact that can be added to compatible disconnect switches and load switches to signal and control auxiliary circuits. This auxiliary contact is designed to snap on easily and integrate with standard industrial switchgear components for expanded functionality.

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Technical Parameters Electrical Contact Configuration: 1 Normally Closed (NC) auxiliary contact — opens when actuated. Conventional Thermal Current (Ithe): Rated for up to 16 A under normal thermal conditions. Rated Operation Current (AC‑15, 230 V): Suitable for typical control duty currents. Rated Insulation Voltage: Suitable for low‑voltage control circuits (commonly up to ~690 V). Connection: Screw terminal connections for wiring. Mechanical & Installation Mounting Style: Side mounting on compatible disconnect or load switches. Housing: Compact block consistent with modular accessory design. Mechanical Durability: Designed for extended operational life in industrial environments. Physical Dimensions Approximate Size: ~40 mm (W) × ~30 mm (H) × ~11 mm (D). Weight: Lightweight, easy to mount on switchgear assemblies. Environmental Operating Temperature: Designed to function reliably within typical control panel temperature ranges. Storage Temperature: Wide range suitable for warehouse or installation environments. Protection: When installed correctly, terminals should be protected within the enclosure; block itself contributes to overall safety compliance. Typical Applications Adding auxiliary feedback or interlock functions to disconnect switches and load switches. Enabling control circuits to detect switch position changes (e.g., open/closed status). Integration into motor control centers, distribution panels, and industrial automation systems requiring auxiliary signalling. Expansion of control logic for safety interlocking and machine sequencing.